High-potential insulator.



LOUIS S'ilJEINBERGEB,

1-,o4o,o5o.

Toll @bhofi't may concern: a

B'e -itl Aknown that;1, Louis S'rriiniinnonn, a-citizen of the UnitedStates, and a resident of the cit of New York, borough ofzllrooklyn,init ie county of Kings and State of New York, have invenhd a new andIni-l proved High-Potential lneulator, of. which the following a full,clear, and exact de scription.

' My invention relatesto high potential in- -sulators, and'moreparticularly to such ineulalors of Special-form are adapted to bemounted upon a wall, a floor, a roof or a partition, or adapted for usein connection with oil switches, and oil transformers, and invariouelanalogous relations.

My invention comprehends quite a number of separate-features ainongwhich are the' following: I. The provision of a tubular member forholdingr the Wire and'meaus .A specially adapted for supporting .thistubuylar member. II. To providea body portion moisture, this irregular`nnection with a central tubii ar niemberof @the kind Justmeiitioned,re1silient members,

thereby performing the double ollice of preventing the entrance of Wateror .moisture and o enabling comparatively -'brittle 'material such asglass, porcelain or the like to be em'iloyed to'rthe central' tubularinember. 'To so form and mount the various parte as'to enable a centraltubular insulating member to be inade-o'brittle material and encircledby an Vinsulating body portion of comparatively tough and stronginsulating material, preferably Electr-ose. VI. To provide a form 01Einsulator in which the various parte or someI of them may be subjectedto extremesbf heat and cold Without linipairing. the -yalueoftheiinSulatoi-.- V11. To give tho'parts such construction that thecentral .tubular inulating member .5 may. have considerable' length or'may', be.

` speciiieanomf gutters raient. Application led .Tune 6, 1910.k SerialNo. 565,187. I

irai) eures-PATENT oFrioa.l

or NEW YORK, N.

HIGrr-rofrniminii INSULATOR;

operator, without disturbing other parte.

VIII. To protect the. central tubular in sulatin'g memberwitha cap pieceof: the hood type, havin'ga large protected Surface, thus increasingquite materially the insulating value of the structure. IX.. To rovide amjieiiiber ofeeparate structural.features `wherebyl thegeneraileliiciency of the in,

isulator is improved. X. To 'provide a form .ratenreaoaa 191e,

lni'ade relatively Short., at the 'twill of the of insulator in whichthe central tuhulaiff insulating member is :supported by yieldingn'ieniberewhich allovv the centralmeniber a certain amount of movement,thereby pre venting injury to orI destruction thereof ow#- ing tomovement of the conductor disposed 'within' the central inenibcr.- 'Xl'.To pro"` videa 'form of insulator in which the ceii-v itral tubularinsulating member ie'rnade of a ir'epi'oof material (porcelain forinstance) thereby iiiakiiig the iiieulator esi'iecially well' Aadai-itedfor'oil switches, transtorinere and the like; when thus employed only aportion ofthe central tubular ireproof insulating member is subu'iergedin the oil, hence heat 'i fing of the oil will not ir'npair theusefulness vof the insulator, -Xll 'lo provide a ilorin of insulator inwhich the various; parte which. -torni lheconiplete structure are den'tachalile, hence lshouldany of' the parte be-v '.coiiie injured ordestroyed it may readily be "replaced with other parts. Xlilll.- To pro-`vide a forni ol .iiieulator in'whichprovisionv is made 'for a very'large amount ot-"insuliitV ing 'Suri'ace between the" conductor and .grouiid,witliout inakiiigthe proportions of.

kthe insulator excessively large.

vReference is to be had. to the accompanying drawing Jforming a partiotthis specifi cation, inwhich the figure sliowsoiie form 'of inyinsulator applied'in Athin instance to an Voil transformer, the lid orcap ol the latteriserving as a barrier for supporting the `insu1ator.` if Alcesing .1 is provided at its top with ,a thickened portion,l andresting upon the latter-ipa lid 3 hereinafter called a barrier Thisbarrier is held iii position on the easing l by nid of scicwbolle 4Aandv may, tor various purposes Lie considered as the: equivalent or aroot", a partition, a ceilingy or any forni of'bairier through which .a

conductor is t"o be, extended and upon ,which i' an insulator lieto-31esupported. il; quan; tlty` 'of oil 5 d )osedgwithin the easing i andserves the fs'ual purpoeef'oft-olxinan' 9 is integral with a head 10which extends downwardly.` of insulating trose.

At 11 is'a removable bushing provided with a threaded portin12 and withlan annular flange 13, these parts being,r valso of lllectrose. Theflange'. 13 is sunken slightly into the adjacent lowerend of the head a.

At 14 is a gasket of soft rubber, this gasrlhe parts just described arematerial, preferably Elecket having generally a frusto-conical form andbeingr provided with an annular flange 15 extending outwardly.

A ring 16 of Electrose is threaded internally and is fitted upon thethreaded portion 8. Two gaskets 17, 18 vare sunken into the lowermostsurface of thering 16 and when this ring is screwed down upon thebarrier 3, the gaskets 17, 18 are clamped tightly a ainst it. At 19, 20are=siinilar gaskets w head 10.

A hood 21 serves asa cap piece`V and is mounted upon the upper portion22l of the cylindrical member (5, this upper portion beyingthreaded forthe purpose. The cap piece 21 1s provided with ail-annular sleeve 23threaded internally for engaging the upper end of the cylindrical member6. The ca) piece 2l is provided with a hood 24'extenfling downwardly andcovering several of the corrugations. The cap piece21 is furtherprovided with an annular portion 25 threaded internally, and tittinginto this is a busliing 26 threaded -cxternally' this .bushing havinanannular flange 27 which is sunken into tie annular portion 25. Agasket 28 similar in form to the gasket 14 is partially encircled by thebushingr 26 and is provided with .an annular flan e-29.

A wire 30 is provi ed' withl a'covering 3l' of insulatin material, thewireand its coverin extendi insulating material, preferably ofvporcelain. The middlev portion of this-tubular member `is provided withcorru ations 33 -of annular form yextenda direct y around it. Thetubular memberj32 1s provided with cylindrical ends 34, 35, the' d end.9A-extenda upwardly thi-on piece 21, and t e end. wardly into the oil5.

li the cap 35 extendigng down- .ing the spacing ich are sunken in theflange 9 andl ng throurh a central tubular mem er 32 which is 0 shocks,blows,

At 36 is a gasket which is provided with an annular portion 36a and isheld in position by aid of the cap piece. Another gasket 37 similar tothe one just described is mounted lower down within the head 10. Thesetwo gasketsv 36, 37 both encircle the central tubular member 32, at thetop and bottom of an air passage 32a, and press in opposite directionsagainst portions of saidtubular member. i y j At 38 is an annular airpassage extending directly around the cylindrical',portion 35, thispassage also extending fromthegasket 37 to the gasket l14. At 39 is asimilar air passage extending from the gasket 36 to the gasket 29. f 4

At 40 is an annular air passage representof the inner edge ofthe barrier3 from tlie SV of the cylindrical member 6'. Atetl is anotherannular-space just below the barrier 3 anddue to the 'fact that aportion of the flange S) is spaced slightl from this barrier.

The operation of my evice is as follows: The corrugations 33, byvirtually increasing the external surface of th tubular member 32, tendto prevent surface leakage and destructive arcing. The tubular member 32beingconcentrie to the cylindrical member 6 and spaced apart therefromby the air'pas- Sugoi-i2, still further increases the insulation. Nomoisture can gety into the air passage 322" because of the gaskets,and"consequently the air passage last mentioned remains dry. Moreover,the external, surface of the .fylindrir-al men-roer 6 is kept dry by aidof the hood 24. The annular air passage `fl() improvesI theIinsulation'. The an' passi'ige t1 between the flange 0 and the barrier3 4")i'evcnts leakage bctween these parts. Adjacent to the gaskets 36,'37 the air passages 3S. 39 afford protection from the current, and thegaskets 14, 28V together with the bushings 11. 26 tend to still furtherimprove the insulation. v i

The various gaskets employed, beea'usepf their resiliency, tend toprevent breakag of Vthe parts which this manner porcelain tube and alsoto use tively -wide range of insulat-in v constructing eachv and all othe various parts. The gaskets 14, 28', 36fand 37, by neatly 'fittinAaround the central tube, and also by ren ering the latter-watcrtightenable this ftubetfbe made of 'comparatively great, length;and also enable a comparamaterials in und. other forms of concussionv-hienmight otherwise tend-to break'it.

g Moreover, the-strains due to expansion and contraction from heat andrcold ered in every sense harmless becauseof the action of -thesevarious gaskets. Again, the annular and cylindrical' air chambersdisposed within tjhe insulator and bounded byv outer surface of theportion action of the various happen to be brittle and inv enable inc touse the central,

it to resist lot ploy Electrose `.30 horizontally disposed. barrier,

. 50 therefrom by y 6*) througb"`the same,

nonnen.

lido notlimft myself to the exact iorm norv to the details of any or allof the parte 5 above shown andl described, rior to any par ticularcombination ofthe elements entering into the construction of myinsulator; neither do l? limit myself to employment of any prescribedfor the insulator proper, and .to use porcelain for the central tubularmember. i

n. win beenden@ ai aies@ Skilled miei .art that changes intheconstruction,y and arrangement of the parts may be re sortedto-ivitliout departing from theI scope or spirit ot' my invention.

Having thus described my invention, I

`claim as new anddesiro to secure byLetters Patent:

1. In adeviced the class described, a barrier, and a cylindrical head,said cylindrical member being further parallel with said barrier andhaving'a portion separated from said' barrier by an air space. p i.

2. In a device of the class described, a and a verti cally disposedcylindrical member extending through said barrier and provided with aflange, saidflange extending substantially parallel with said barrierand partially sep- 'arated therefrom by an air space.

3. An insulator, comprising a .tubular member of insulating. material,Aa cylindrical member of insulating material encircling the'- same, 40/ber and said cylindrical member,

a gasket engaging 'said' tubular memanda cap engagin 4said gasket andsaidtubular member, sai cap having a hood extending par-V tially alongl'said cylindrical memberf for protecting the 'same from moisture.`

4. In a device of the class described, a ban rier provided with anopening, a 4cylindrical member provided with a head and further providedwith a large vflange disposed on one side of said barrier andpartiallyseparated an air space, said cylindrical member being further providedwith an eni .I larged portion extending through said open- -'ing,1and anannular member engaging said barrierandalso engaging said enlarged por-5o tion, said' annular member being disposed upon the side ofsaidbarrier opposite from said head.

5. jI-n adevice of the class described, a barrier, a cylindrical member.extending and a flange mounted upon said cylindrical member and extend,Aing/'parallel with said barrier, said flange being provided witharoughened surface fao ing @Way vfrom saidV barrier;

materials, but prefer to em-' portion n provided having its oppositeforni member extending, through vsaid barrier and provided with a deviceof the class desc'ribedg'abai4 'rieil provided with a flat surface, anda verti cally'disposed cylindrical member extending through said barrierand provided with. a

flange, said flange having a flat surface andv 'extending substantiallyparallel with n said flatsuri'ace of saidbarrier and partially'sep`arated therefrom byv an air space, said flange being provided Withcorrugations extending jaway from said barrier. I 7. In an insulator;'be combination comprising a tubular member having its cent-ral withcorrugatons and end portions made relatively smooth; a cylindricalmember sur rounding said tubular member; gaskets littingjupofg, thesmootlrend portions of said tubular member engaging the endcorrugationsfor supporting said tubular member against endwise movement, and forformin a dead sir space between said cylindrica member and thecorrugated surface of said tubular member. i i

8. In an insulator; the combination conv' prising a tubular member ofinsulating material; a cylindrical member of insulating materialencircling said first member; and a cap engaging said members forretaining said members in cooperative relation, being formed with aprotecting hood depending for a considerable distance around 'saidmembers.

9. In an insulator; a combination com prising a tubular member o finsulating 'material; a cylindrical member of insulating materialencircling said irstmember; and a cap fixed to said cylindrical memberengaging. said tubular member for retaining said members in coperativerelation, being formed with a" protecting hood depending for aconsiderable distance around said members. y f

I0. lnan insulator; the combination comprising a tubular. member ofinsulating materialga cylindrical'member of insulating material'encirclingsaid first member and formed with supporting means forretaining said tubular member against endwise move. ment; and a capcarried by said cylindrical member adapted to move said tubular mem berin the'direction of its length so Vas to maintain the same inengagementlmvithsaid supporting means', said cap being formed to providean annular dead airspace surrounding said tubular member.

l1. ln an insulator; the combination comprising a 'tubular member havingits cen ral portion provided with corrugations and having its oppositeend portions made rel ativelv smooth; a cylindrical member surroundingsaid tubular member; gaskets fitting upon. the smooth end portions ofsaid tubular member engaging the end cor-rugations for supportingsaid'tubular member against endivise,1novement,'and for forming a deadair space between said'cylindrical member und the eurruguted sur'zu-.eof said tulrui'ar member; und :i remm'ubleap fitting wer one enfl ofsaid cylindrical member adapted fur foreing said gaskets toward saidem'rugations.

l2. ln an insulator, the eoml'iinutien with :i lmrrier imvingy meansfixed thereto udupled ln retain :1n insulatingr liquid; ef un insulatormember pruifcting through said barrior into said liquid; und insulatinginesins fixed to Said barrier supporting said first insulator memberbeing` formed with a moisture resisting surface surrounding said Hrstinsulator member end oppused to seid liquid. 1

In testimony, whereof I have signed my name to this specification in thepresence of two subscribing witnesses. l

' LOUIS STEINBERGER.

Witnesses: A

W A more H .i musrm, inimr D. RoLLnAUs.

